Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va moi core snippets" » "va moi co snippets", "va moi cong snippets", "va moi con snippets", "va mot core snippets", "ve moi core snippets", "va mo core snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"va moi core snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( va moi core snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("va moi core snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.